I created a GPT to answer DW questions. In my testing it's pretty good about not getting confused with DnD rules (which regular ChatGPT does). I'm organizing my first DW game as a GM and I'm planning to use it to help me out.
Some good prompts for it:
How much XP does a character need to level up?
How do I resolve damage from multiple NPCs attacking the character?
Suggest 3 monsters the party might encounter in an evil wizard's castle
That's really cool. I've been thinking about doing something like that for pathfinder to. I wonder how it works with copyright and stuff. Did you upload the rule PDF to it?
I tried that at first, but I found that it would take about 2 minutes for each question to search through the PDF, which was a bit inconvenient. So I took it out added context telling it to only give information relating to Dungeon world and (crucially) to ignore all information related to DnD.